2. Label any stereocenters in the following molecule as (R) or (S): ОН H. .CH3 `CH3 OH

Compound 1 Br Bri НІ T ... H The correct IUPAC names are: Compound 2 H Br Br I.. H Br The compounds are diastereomers not isomeric enantiomers identical constitutional isomers Compound 1: (2R, 3R)-1,2,3-tribromobutane, Compound 2: (2S, 3R)-1,2,3-tribromobutane Compound 1: (2R, 3S)-1,2,3-tribromobutane, O Compound 1: (2R,3R)-1,2,3-tribromobutane, Compound 2: (2S,3S)-1,2,3-tribromobutane Compound 2: (2R, 3R)-1,2,3-tribromobutane O Compound 1: (2S,3S)-1,2,3-tribromobutane, Compound 2: (2R,3S)-1,2,3-tribromobutane

Designate the following compound as R or S. CH₂CH₂l HO-C-CH3 CH₂OH Select one: O A. There are no stereocenters in molecule. OB. S C. R

1. Indicate whether the following pairs of compounds are identical, enantiomers, diastereomers, or structural isomers. a) CHO H- -NH₂ -H CH₂OH HO and H- H CH₂OH -OH -NH₂ CHO CI H 4-4 and H b) H CH3 "ng" H. H and CH3 H Ph H3C H and H. H CI H CH3 Ph